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    <meta charset="UTF-8">
    <title>Title</title>
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<h1>引入图片、音频、视频</h1>
<img src="img/a.jpg">
<img src="https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fgz.lanou3g.com%2Fueditor%2Fphp%2Fupload%2Fimage%2F20170802%2F1501642522424565.jpg&refer=http%3A%2F%2Fgz.lanou3g.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1670987664&t=b886fbf215a09cc784727bc6b8cec4a3">
<audio src="img/b.mp3" controls></audio>
<video src="img/c.mp4" controls></video>
</body>
</html>